Greenfield is a city of approximately 17,200 people in California, United States. Located in the Pacific Time Zone at 36.3°N latitude.
In 2025, Greenfield recorded an average annual temperature of 62°F — about 3.5°F above the 30-year normal of 58°F. The hottest day reached 107°F in September; the coldest was 33°F in February. Total precipitation was 14 inches (near normal). The wettest month was February.
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